Yu Yu Hakusho: Spirit Detective Gameshark Codes (USA)
This page contains Gameshark cheat codes for Yu Yu Hakusho: Spirit Detective (USA). If you're playing on an emulator you can usually input codes very easily by accessing a tab off the top of the toolbar. Anyone playing on a physical Gameboy will need to purchase a physical Gameshark device to use these codes.
If you're using an emulator and still can't figure out how to setup these codes, you're in luck! There's two common emulators for GBA games, the mGBA and VisualBoy Advance. Follow the link provided for the emulator you're using to be taken to a guide explaining how to get these codes working.
Don't see the code you're looking for on this page? Head on over to my Yu Yu Hakusho: Spirit Detective (USA) CodeBreaker Codes and check for your code there instead!
Every Character Has All Spirit Attacks: 13000E4A 0000FFFF
Extras Menu Unlocked: 03007E52 00000001
Unlimited Health (All Characters)
Unlimited Spirit Energy (All Characters)
Level Select Menu
PAUSE - Hold R + Press Select
Max Level & Stats (All Characters)
Reset Timer on Timed Levels
Press Select + Up